I am trying to start hadoop using bin/start-mapred.sh. In the HADOOP_HOME/lib, I have: lib/hadoop-cephfs.jar lib/libcephfs.jar lib/libcephfs_jni.so (the first I downloaded from http://ceph.com/docs/master/cephfs/hadoop/ and the other two, I copied from my system (after installing the ubuntu package for the ceph java client)) I added to conf/hadoop-env.sh: export LD_LIBRARY_PATH=/hyrax/hadoop-ceph/lib I confirmed using bin/hadoop classpath that both jar are in the classpath. On Mon, Sep 23, 2013 at 3:17 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: > How are you invoking Hadoop? Also, I forgot to ask, are you using the > wrappers located in github.com/ceph/hadoop-common (or the jar linked > to on http://ceph.com/docs/master/cephfs/hadoop/)? > > On Mon, Sep 23, 2013 at 12:05 PM, Rolando Martins > <rolando.martins@xxxxxxxxx> wrote: >> Hi Noah, >> I enabled the debugging and got: >> >> 2013-09-23 18:59:34.705894 7f0b58de7700 -1 monclient(hunting): ERROR: >> missing keyring, cannot use cephx for authentication >> 2013-09-23 18:59:34.706106 7f0b58de7700 20 client.-1 trim_cache size 0 max 0 >> 2013-09-23 18:59:34.706225 7f0b58de7700 10 jni: ceph_mount: exit ret -2 >> >> I have the ceph.client.admin.keyring file in /etc/ceph and I tried >> with and without the >> parameter in core-site.xml. Unfortunately without success:( >> >> Thanks, >> Rolando >> >> >> <property> >> <name>fs.ceph.impl</name> >> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >> </property> >> >> <property> >> <name>fs.default.name</name> >> <value>ceph://hyrax1:6789/</value> >> </property> >> >> <property> >> <name>ceph.conf.file</name> >> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >> </property> >> >> <property> >> <name>ceph.root.dir</name> >> <value>/</value> >> </property> >> <property> >> <name>ceph.auth.keyring</name> >> <value>/hyrax/hadoop-ceph/ceph/ceph.client.admin.keyring</value> >> </property> >> >> On Mon, Sep 23, 2013 at 2:24 PM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>> Shoot, I thought I had it figured out :) >>> >>> There is a default admin user created when you first create your >>> cluster. After a typical install via ceph-deploy, there should be a >>> file called 'ceph.client.admin.keyring', usually sibling to ceph.conf. >>> If this is in a standard location (e.g. /etc/ceph) you shouldn't need >>> the keyring option, otherwise point 'ceph.auth.keyring' at that >>> keyring file. You shouldn't need both the keyring and the keyfile >>> options set, but it just depends on how your authentication / users >>> are all setup. >>> >>> The easiest thing to do if that doesn't solve your problem is probably >>> to turn on logging so we can see what is blowing up. >>> >>> In your ceph.conf you can add 'debug client = 20' and 'debug >>> javaclient = 20' to the client section. You may also need to set the >>> log file 'log file = /path/...'. You don't need to do this on all your >>> nodes, just one node where you get the failure. >>> >>> - Noah >>> >>>> Thanks, >>>> Rolando >>>> >>>> P.S.: I have the cephFS mounted locally, so the cluster is ok. >>>> >>>> cluster d9ca74d0-d9f4-436d-92de-762af67c6534 >>>> health HEALTH_OK >>>> monmap e1: 9 mons at >>>> {hyrax1=10.10.10.10:6789/0,hyrax2=10.10.10.12:6789/0,hyrax3=10.10.10.15:6789/0,hyrax4=10.10.10.13:6789/0,hyrax5=10.10.10.16:6789/0,hyrax6=10.10.10.14:6789/0,hyrax7=10.10.10.18:6789/0,hyrax8=10.10.10.17:6789/0,hyrax9=10.10.10.11:6789/0}, >>>> election epoch 6, quorum 0,1,2,3,4,5,6,7,8 >>>> hyrax1,hyrax2,hyrax3,hyrax4,hyrax5,hyrax6,hyrax7,hyrax8,hyrax9 >>>> osdmap e30: 9 osds: 9 up, 9 in >>>> pgmap v2457: 192 pgs: 192 active+clean; 10408 bytes data, 44312 MB >>>> used, 168 GB / 221 GB avail >>>> mdsmap e4: 1/1/1 up {0=hyrax1=up:active} >>>> >>>> >>>> <property> >>>> <name>fs.ceph.impl</name> >>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>> </property> >>>> >>>> <property> >>>> <name>fs.default.name</name> >>>> <value>ceph://hyrax1:6789/</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.conf.file</name> >>>> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.root.dir</name> >>>> <value>/</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.auth.keyfile</name> >>>> <value>/hyrax/hadoop-ceph/ceph/admin.secret</value> >>>> </property> >>>> >>>> <property> >>>> <name>ceph.auth.keyring</name> >>>> <value>/hyrax/hadoop-ceph/ceph/ceph.mon.keyring</value> >>>> </property> >>>> >>>> On Mon, Sep 23, 2013 at 11:42 AM, Noah Watkins <noah.watkins@xxxxxxxxxxx> wrote: >>>>>> <property> >>>>>> <name>ceph.root.dir</name> >>>>>> <value>/mnt/mycephfs</value> >>>>>> </property> >>>>> >>>>> This is probably causing the issue. Is this meant to be a local mount >>>>> point? The 'ceph.root.dir' property specifies the root directory >>>>> /inside/ CephFS, and the Hadoop implementation doesn't require a local >>>>> CephFS mount--it uses a client library to interact with the file >>>>> system. >>>>> >>>>> The default value for this property is "/", so you can probably just >>>>> remove this from your config file unless your CephFS directory >>>>> structure is carved up in a special way. >>>>> >>>>>> <property> >>>>>> <name>ceph.conf.file</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.conf</value> >>>>>> </property> >>>>>> <property> >>>>>> <name>ceph.auth.keyfile</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/admin.secret</value> >>>>>> </property> >>>>>> >>>>>> <property> >>>>>> <name>ceph.auth.keyring</name> >>>>>> <value>/hyrax/hadoop-ceph/ceph/ceph.mon.keyring</value> >>>>>> </property> >>>>> >>>>> These files will need to be available locally on every node Hadoop >>>>> runs on. I think the error below will occur after these are loaded, so >>>>> it probably isn't your issue, though I don't recall exactly at which >>>>> point different configuration files are loaded. >>>>> >>>>>> <property> >>>>>> <name>fs.hdfs.impl</name> >>>>>> <value>org.apache.hadoop.fs.ceph.CephFileSystem</value> >>>>>> </property> >>>>> >>>>> I don't think this is part of the problem you are seeing, but this >>>>> 'fs.hdfs.impl' property should probably be removed. We aren't >>>>> overriding HDFS, just replacing it. >>>>> >>>>>> <property> >>>>>> <name>ceph.mon.address</name> >>>>>> <value>hyrax1:6789</value> >>>>>> </property> >>>>> >>>>> This was already specified in your 'fs.default.name' property. I don't >>>>> think that duplicating it is an issue, but I should probably update >>>>> the documentation to make it clear that the monitor only needs to be >>>>> listed once. >>>>> >>>>> Thanks! >>>>> Noah _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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